WSB-3A Digital Whiteness Meter

Instrument Usage

The WSB-3A intelligent digital whiteness meter is a special instrument designed completely in accordance with international and domestic standards.  It can be used to directly measure the optical properties of objects such as whiteness, brightness, transparency, opacity, light scattering and light absorption coefficient.

The instrument adopts d/0 optical illumination/observation (diffuse illumination, vertical reception) geometric conditions, which effectively eliminates errors caused by the difference in surface flatness and placement of the sample. The instrument uses microcomputer technology to achieve zero point and standard  The value is automatically calibrated, and it can be saved for a period of time when the power is off.  Due to the integrated switching power supply circuit, the power consumption of the instrument is low and the power supply has a wide range of adaptability.

Applicable Standards

GB3978模拟D65照明体照明,d/0照明/观测条件,漫射球直径150mm,测量口直径30mm;GB3978 simulation D65 illuminant body illumination, d/0 illumination/observation conditions, diffuse sphere diameter 150mm, diameter of the measuring port 30mm;
GB7979-Y10 brightness optical system of spectral power distribution in line with the CIE standard D65 light source, 10 ° field of view of the stimulus value of Y10 determination conditions;;...
GB/T7973 pulp and paperboard diffuse reflectance factor determination method (d/0 method);.
GB/T7974 paper and cardboard whiteness determination method (d/0 method), GB/T7974-R457 whiteness optical system of the spectral power distribution of the peak wavelength of 457nm, half-peak high wave width of 44nm;
ISO2469.
ISO2470 paper and cardboard a blue light diffuse reflectance factor measurement (ISO brightness).
GB/T5950 building materials and non-metallic mineral products whiteness measurement method GB2913-82 plastic whiteness test method.
GB1840 industrial potato starch measurement method; GB1840 industrial potato starch measurement method; GB1840 industrial potato starch measurement method; GB1840 industrial potato starch determination method
GB13025, 2-91 salt industry general test method for the determination of whiteness GB1543-88 paper opacity determination method.
ISO2471 paperboard a diffuse reflection method for the determination of opacity.
GB10339-89 paper and pulp light scattering coefficient and light absorption coefficient determination method.

Instrument shape picture